Depends on the type of flying you are doing..
For me, because i dont fly anything with LCD, or CRT screens, anything polarized does the trick for me.
In my experience as a VFR pilot with some Instrument flying, polarized lenes tend "eat" through low visibilty, and make clouds more deffinate. Lets say the visiblity is 8SM, with the polarized lenes i can see about 9 or 10SM. And i can see clouds alot more clearer.
However polarized lenes have some sort of effect on LCD and CRT screens, so the "pros" if you will, dont use them.

I have been using Ray-Ban Aviators for years. They seem to work well in all conditions, even in glass cockpits. I know what you mean about "cutting through the haze" with polarized lenses. A lot of the glare is disapated.

I don't beileve it's against any regs... anyway it might be a good idea to bring your headset in when you get new glasses; that way you'll know if it's likely to give you a headache after the 4th flight of the day. Sure you'll look like a dork for 5 min but you'll go the next few years in comfort